Home / 20,597.47-28,424.48-11,166.03

Finding the Fourth Proportional to 20,597.47, 28,424.48 and 11,166.03

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Solution

The fourth proportional to 20,597.47, 28,424.48 and 11,166.03 is: 15,409.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.47 : 28,424.48 = 11,166.03 : x
  2. Step 2: Convert to fraction form
    20,597.47/28,424.48 = 11,166.03/x
  3. Step 3: Cross multiply
    20,597.47x = 28,424.48 × 11,166.03
  4. Step 4: Simplify right side
    20,597.47x = 317,388,540.58
  5. Step 5: Solve for x
    x = 317,388,540.58/20,597.47
  6. Step 6: Final answer
    x = 15,409.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.